◎ 题干
—How clean the window is !                
—Yes.It      just now.    
[     ]
A. has been cleaned    
B. was cleaned  
C. is cleaned    
D. willbe cleaned
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—How clean the window is !—Yes.Itjust now.[ ]A. has been cleaned B. was cleaned C. is cleaned D. willbe cleaned…”主要考查了你对  【被动语态】【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。